This would be to op. This would bring no purpose to the egg. I'll explain, if you die, you can respawn full iron and everything. If your egg gets broken, you can easily kill the person that killed their egg. The person that's trying to break the enemy's egg is going to have a really hard time breaking their egg. If you did care about your egg, you could just jump off the map just to reach your island faster. At that point no one can break your egg.

If you are for example at mid, and someone full iron is in your island breaking idk your obsidian, and you die full iron with gappels, it would be too OP, and remember that when you respawn people can touch you in few seconds!